Remortgaging
When a fixed deal ends you usually move to a new rate. Even a one or two percentage point change can add a large amount to the monthly payment. Starting four to six months early gives you time to compare routes without drifting onto an expensive standard variable rate.
Under the Mortgage Charter, signatory lenders (covering most of the UK market) let customers who are up to date with payments lock in a new deal up to six months before their fixed rate ends. You apply through your lender, not the government.
A product transfer switches to a new deal with your current lender — usually quicker, fewer upfront fees, and sometimes lighter affordability checks if you are not borrowing more. A remortgage moves to another lender and opens the whole market, but involves a full application and conveyancing.
The impact of a higher rate is bigger on larger loans and when more of the balance is still outstanding. Varying the interest rate by a percentage point or two on your scenario shows how much extra monthly payment you might need to absorb.
Change the inputs on the calculator — price, nation, or buyer type — and see how the numbers respond.
Model repayments at a higher rateAssumptions and sourcesThe true cost of owning a home (beyond the mortgage)
The monthly mortgage repayment is usually the biggest housing cost, but it is not the only one. Council tax, buildings insurance, maintenance, and sometimes service charges or ground rent all come out of your budget too. Adding them up gives a clearer picture of what living in the property actually costs.
Read guideRent vs buy in the UK: a scenario-based comparison
Renting and buying differ in monthly cost, but the gap widens once you count upfront cash — deposit, stamp duty, and buying fees. Those costs hit harder if you move often, because you pay them again with each purchase. Over a full mortgage term, equity, house prices, and spare cash on the rent path all shape the longer picture.
Read guideHow much stamp duty will I pay in 2025/26?
Stamp duty is transaction tax on residential property. You pay nothing on the slice below the first threshold, then progressively higher rates on amounts above. The total is the sum of tax on each slice — not one flat percentage of the whole price. That slice-by-slice structure catches many first-time buyers by surprise.
Read guidePalta Money is for education and planning only. It is not regulated financial advice. Tax rules and rates change; confirm figures with official sources or a qualified adviser before you commit.